Building construction.



PATENTED JUNE 25} 1907.

3. MoGLURE. BUILDING CONSTRUCTION.

APPLI OATION FILED D110. 17, 1906.

UNITED sTArns r ArENT OFFICE.

EDWARD MoCLURE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO FRANKLIN P. SMITH, OF CHICAGO, lLLINOIS.-

'. ,BUILDING CONSTRUCTION.

Specification of Letters Patent. Application tiled December 17.1996. Serial lilo. 348.119.

Patented June 25, 1907.

T 11]] whom, it may con/cent:

Be it known that I, EDWARD McCLuRE, a citizen of the United. States, a resident of Chicago, in the county of (look and State of Illinois, have invented certain new and useful Improvements in Buildin Construction, of which the following is a ful clear, and exact description.

. My invention relates to certain new and useful improvements in building construction and more particularly to improvements in the columns which form the upright supporting members, of the building.

The object of the invention is to simplify constructions of this class, to increase the strengtht-hereof, to provide a rigid and practically inflexible binder for the concrete and to otherwise improve the same.

, To such end the invention relates to certain novel features of construction and arrangement, a description, of which will be found in the following specification and the umn. throu h one of the u rights.

- uprights.

essential features of which will be more definitelypointed outin the appended claims.

The invention is clearly illustrated in the accompanying drawing in which ig ure 1 is a view partly in side elevation and partly in section illustrating the preferred form of my invention. Fig. 2 is a horizontal section taken in the line 2-2 Fig. 1. Fig. 3 is a fragmental perspective view of one of the upright members, and binder wire that form the main frame or skeleton of the col- Fig. 4 is a horizontal cross section Fig. 5 is a per spective view of a ragment of the binder wire and one upright, and Figs. 6, 7 and 8 are horizontal cross sections of modified forms of In Figs. 1 to 5, inclusive, 10 represents a column constructed in accordance with the preferred form of my invention. As shown the frame work of the column contains a number of circumfercntiall disposed bars or uprights 20, of any suitable cross section, and preferably of rolled steel bars. The size of the-bars, that is to say the area of their cross section, and their number depend upon the size of the column and the load to be car ried, and the ones shown in Figs. 3 and 4 are approximately half size and suitable for a co umn of say, from 18 to 30 inches. 'lhcse bars are connected b Y a coil of wire 30, which is wound LIOLUld the bars and suitably spaced apart and connected. thereto by a serrated or toothed iin or web 23, which extends out from the main part of ihi' r4 red as clearly shown in 3 a: This flu or web .21, quite thin as comp l with. the main body of the bar or rod 20, ant 22, between the teeth 25.3 preferably extend at an acute angle with respect to the bar or rod. The alternate bars or rodrrZll, are upended or reversed, to make the teeth and notches extend downward and in a direction opposite to that in which the notches in the other bars extend, the efl'cct being to secure the Wire to the bars or rods without any further fastening medium. In practice, however, it is found desirable to clench the ends of some of the teeth down iipon the wire and this is done with every fifth or sixth tooth. By thus clenching a few of the teeth the Wires and uprights are tied together and no twisting is possible of the frame thus formed. In constructing columns of this class it is important that the main body of the uprights should not be weakened in any manner, inasmuch as its strength will thereby be greatly impaired. Various attempts have been made to space the wires upon the uprights and to tie them thereto, as for mstance, they have been wired thereto, but with a construction of this'kind the frame when complete, may be twisted around and it is practically impossible to make a perfectly rigid frame, which is obviously necessary in a device of this class. For very li ht work, thin, notched strips have been used but this is impractical for heavy work, and if rods of large diameter are used with notches and teeth extending the full width of their faces, a great waste of material is occasioned and the bar is weakened by punching out the slots between the teeth. Furthermore the clenching down of teeth of this size becomes a difficult matter requiring extra labor and time. By con structing the rod or bar of the proper cross section to be the most effective for the purpose intended, and providing it with a serrated fin or web for the attachment of the wire, all of the undesirable and impracticable features are avoided and means are prov idcd whereby the rods and wire may be iirmly united to make a more rigid frame work, with less amount of metal, and labor in its construction. 'lo com late the column the frame thus formed is led with concrete 30 he notches or spaces and the outer surface covered with two or three inches ol concrete, thus completely embedding the frame in the concrete. concrete surrounds the bars on all of their sides and fills in between the teeth of the fins and between the turns of the coil of wire, so that the frame and concrete are firmly united. A column thus constructed has practically the same carrying capacity as the ordinary steel column occupying the same amount of area in cross section and is less destructible in lire than the unprotected steel columns.

In Fig. (3 the iin or web 21 is shown as placed in the center of one of the sides of the bar 20, and in Fig. 7 the bar 120 is oblong in cross section with the lin or web 21 extending out from one of its corners. In Fig. 8 the iin or we b is shown as composed of a separate strip of metal 21" wired to the main bar 20. Other alterations and modifications of the device are possible and I do not therefore desire to limit myself to the specific forms shown and described. except as particularly pointed out in the appended claims.

I claim as new and desire to secure by Letters Patent.

1. In a concrete column construction, the combination of one or more upright bars or rods and a spiral encircling band extending throughout the entire length of the column, each bar or red having a thin toothed longitudinally extending web adapted to form a connecting n'icdium between the encircling band and the bars or rods.

2. In a concrete column construction, the combination of a plurality of circumferentially disposed upright bars or rods, each having a thin toothed longitudinally extending fin or web, a spiral coil of wire wound upon the bars and. cxten .ling throughout the entire length of the column, each turn of the wire being seated in the notches between the teeth-of the fins, and body of concrete in which the bars and wire are wholly embedded.

The I 4. In a concrete column construction, the.

combination of a plurality of upright bars or rods, each having a thin longitudinally extendin toothed tin or web the teeth extending diagonally with respect to the bar, and the teeth on the alternate bars extending upward, and on the others extending down-- ward, a spiral coil of wire wound around the bars or rods and extending throughout the entire length of the column and seated in the spaces between the teeth, and a body of concrete in which the bars and wire are wholly embedded.

5. In a concrete column combination of a each having toothed web, a spiral coil of wire wound around the bars or rods and extending throughout the entire length of the column and seated in. the spaces between the teeth,

construction, the plurality of bars or rods,

a longitudinally extending.

certain of which are clenched down upon the wire, and a body of concrete in which the bars and wire are wholly embedded.

In witness whereof I have executed the above application for Letters Patent of the United States, at Chicago,- county of Cook and State of Illinois, this twelfth day of December, 1906.

EDWARD MOCLURF.

Witnesses R. ll. BARNITT, A. liinsinn. 

